Flue-calking machine.



J. F. BECK.

.FLUE CALKING MACHINE APPLICATION FILED MAR. 25. 19:6.

1 ,206,080. Patented Nov. 28, 1916.

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JOHN F. BECK, OF GRAND RAPIDS, MICHIGAN.

FLUE-CALKING MACHINE.

Specification of Letters Patent. Patented NOV. 28, 1916;

Application filed March 25, 1916. Serial No. 86,813.

T 0 all whom it may concern:

Be it known that I, JOHN F. BECK, a citi zen of the United States,residing at Grand Rapids, in the county of Kent and State of Michigan,have invented certain new and useful Improvements in Flue-calkingHachines, of which the following is a specification.

My invention relates to improvements in appliances for holding andguiding calking tools when calking the ends of boiler tubes inlocomotive boilers, and its objects are: first, to provide a meanswhereby the calking tool may be held in the exact necessary position toform a perfect bead at the end of the tube when forming it over againstthe surface of a boiler front; second, to provide an implement of thekind named that may be adjusted to meet different conditions in theboiler tube, and, third, to provide an implement of the kind named whichwill render it impossible to throw the point of the calking tool inposition to cut into and mar the surface of the boiler front, or to cutand crumble the edge of the end of the tube when forming it into a beadand forcing it into such close contact with the surface of the boilerfront to form, therewith, a steam tight joint. by the mechanismillustrated in the accompanying drawing, in which Figure 1 is asectionalelevation of a boiler front and tube with my device, also in section,shown in its relative position with the calking tool; Fig. 2 is a likeview of the boiler front and tube with my device in place showing howthe calking tool is applied therewith, and Fig. 3 is an end view of thebody part of my implement with the handle removed, showing the openingsfor the reception of the calking tool.

Similar numerals refer to similar parts in each of the several viewsshown.

In Figs. 1 and 2 I have shown a transverse vertical sectional view ofthe boiler front 1, and a longitudinal sectional I attain these objectsof the operator it is almost impossible not to carry it out of properposition, at some point or points in the circle of the tube, to such anextent as to endanger the marring of the boiler front'or disfiguring thebead being turned at the end of the tube. To obviate this difficultywithout making a special calking tool, I provide a metal guideconsisting of a body 6, made of a size to pass closely but freely intothe-ends of the tubes, and a flange 17 of suflicient diameter andthickness to allow of forming an annular groove of sutlicient size andform to exactly fit over the head when it is fully formed. This body andflange have a slot or mortise 18 made in it of sufiicient size anddimensions to easily receive the head 5 of the calking tool. This slot,while of the exact width of the thickness of the head 5 of the tool, isconsiderably deeper than the transverse thickness of the head of thetool so a supporting plate 12 may be inserted back of the tool and heldin adjustable position by means of proper springs, as l3, 13

of sufficient strength to hold the tool in exact proper position, and infirm contact with the surface of the tube, as indicated in Fig. l. Theoffset or ledge 15 is designed to prevent the end of the supportingplate from being forced out of the slot 18 at the back end of the bodyof my implement. The other end of the supporting plate 12 is adjustablyheld in position by means of a slotted arm 9, fitted into the receptacle9' in the stem 8, and held therein by means of a retaining pin 10, asshown in Fig. 1 and indicated in Fig. 2. V

The handle 7 is adjustably secured upon the stem 8 by means of aretaining pin 11,

passed through the stem and a slot, 16, in

' also he slid laterally on said stem so it may be made available foruse With any ordinary calking tool.

It will be readily understood that when power is applied to the shank 4of the calking tool the action of the springs 13, 13 and the adjustablehandle 7 will cause the calking tool to be always held in the exactnecessary relative position with the tube so as to render it impossibleto disfigure either'the boiler plate, or the bead being formed on theend of the tube.

3 indicates the ordinary offset on the tool to render the body 3,thereof, enough heavier than the thin head 5 to avert all danger ofundue trembling of the tool by reason of the action of the powerimpelling element on the shank 4.

What I claim as new and desire to secure is:

1. In combination with an ordinary tool for calking the ends oflocomotive boiler tubes, a cylindrical body fitted to enter the end ofthe tube, and having a longitudinal slot therein, a slotted flangeintegral with said body and having an annular groove therein,semicircular in cross section, a ledge projecting over the back end ofthe groove, a supporting plate pivotally and slidaloly mounted in thegroove, springs for forcing said plate against the surface of the toolto force its other edge against the inner surface of the tube.

2. In combination with an ordinary tool for calking the ends of tubes inlocomotive boilers, a cylindrical body made to fit into the end of thetube and having a longitudinal slot in from one side, a ledge extendingover one end of the slot, a plate adjustably secured in the slot,springs for forcing said plate outward, a flange integral with the bodyand having an annular groove adjacent to the body, and a handleadjustably mounted on the body and adapted to engage with, and supportthe tool.

Signed at Grand Rapids, Michigan, March JOHN F. BECK.

Copies of this patent may be obtained for five cents each, by addressingthe Commissioner of Patents, Washington, D. G.

